The line comes from the Futurama episode Attack of the Killer App, first aired in 2010, where Fry rushes to buy an eyePhone and waves his money at the store clerk. A still of that moment became a widely shared image macro, and the audio clip followed as a reaction sound on forums, YouTube edits and streams. Its blunt enthusiasm captured early internet shopping culture perfectly, which is why it still gets used whenever a trailer, gadget or collectible makes people want to spend without hesitation at all.